[" 2.Which of the following statements regarding cilia is "],[" not correct? "],[[" (1) Cilia contain an outer of nine doublet "],[" microtubules surrounding two single "],[" microtubules."],[" (2) The organized beating of cilia is controlled by "],[" fluxes of "Ca^(2+)" across the membrane."],[" (3) Cilia are hair-like cellular appendages."]]